Simplicity Citation 5900523 Operator's Manual page 44

Regular Maintenance
52" Mower
D
Decks
A
D
Figure 51. Mower PTO Belt Routing
A. Spindle Pulley
B. PTO Drive Belt
C. Spring-loaded Idler Pulley
D. Stationary Idler Pulley
Check the Mower Belt Idler Tensioner Spring Length
1. Park the machine on a smooth level surface such as a
concrete floor. Disengage the PTO, engage the parking
brake, turn off the engine and remove the ignition key.
2. Lower the mower deck to its lowest cutting position.
3. Measure the coil length of the mower belt tension spring
(A, Figure 49). The measurement the measurement as
designated in the chart. If the measurement does not
equal the measurement as designated in the chart, adjust
the mower belt idler spring length (E).
Adjusting the Mower Belt Idler Spring Length
1. Loosen the jam nut (C, Figure 49) from the back of the
anchor eyebolt (B).
2. Turn the adjustment nut (D) until the measurement as
designated in the chart, is achieved.
3. Retighten the jam nut.
Mower Belt Idler Spring Length
52" Deck
Briggs & Stratton Cyclonic Engine
w/61" Deck
Briggs & Stratton Vanguard Engine
w/61" Deck
42
B
C
A
A
Measurement
inch cm
6-1/2 16.5
6-1/8 15.6
D
61" Mower Decks
A
D
E
D
Figure 49. Mower Belt Idler Spring Length
B
C
A
D
A
A
C
B
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